Explainer Video - Combustion

Profile photo for Karenza Boscawen
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Description

The epitome of a English voice, Karenza's well articulated and clear voice is used effectively here describing the process of Combustion for an e-learning read. The delivery is confident, smooth and naturally felt. As a professionally trained actor, her sense of appropriate timing and musicality is strong. She brings warmth and positive energy to her reads. With both a financial and scientific background (BSc Hons in Environmental Biology), she is familiar with a range of technical terms and processes. She takes care to get the pronunciation, pace and intonation correct so the correct sense of the narrative is communicated and the learning process is enhanced.

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Vocal Characteristics

Language

English

Voice Age

Middle Aged (35-54)

Accents

British (General) British (Received Pronunciation - RP, BBC)

Transcript

Note: Transcripts are generated using speech recognition software and may contain errors.
combustion requires three ingredients sometimes referred to is the combustion triangle. Combustion requires air fuel on a source of ignition like a spark. An internal combustion engine uses a system of cylinders and pistons to create the conditions for combustion to take place. Valves allow fuel and air to mix in the cylinder. Were a spark or compression ignites the mixture. This controlled ignition of the fuel drives the piston down, turning energy from fuel into mechanical movement. Spark ignition engines use a spark plug to ignite a premixed air fuel mixture introduced into the cylinder. They can operate with either two or four stroke cycles. Less compression is necessary compared to compression engine designs. Natural gas spark ignition engines operate at modest compression ratios, depending on engine design and turbocharging.